Impact and mitigations for Linux kernel vulnerability CVE-2026-98432

Sakura CloudSecurity

Users running Linux servers are advised to check security notices and apply kernel updates for vulnerability CVE-2026-98432.

Changes

  • Specially crafted IPv4 TCP packets from outside may lead to service disruption or arbitrary code execution.
  • Packet filter and network restriction features can be used to limit connections to trusted sources as a mitigation.
  • Restarting after an OS update can be completed solely using the "Reboot" operation rather than "Stop -> Start".
  • Mitigations are being sequentially applied to managed services including Enhanced Load Balancers, VPN Routers, and AppRun.
  • No impact on Sakura Cloud infrastructure systems or provided services has been confirmed at this time.

Affected areas

CVE-2026-98432

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This summary is independently created by Release Radar and is not an official announcement from the vendor. Please read the official page for accurate details.

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